AT&T Relay Services - att relayAT&T Relay Services, Internet, phone, and video. ... Here you will find explanations and step-by-step instructions for each type of TTY service available, along with equipment ... AT&T National Relay - att relayNeed a number? Click « or » AT&T Internet Relay - att relayInformation on communication relay services using the Internet with AT&T. ... AT&T Internet Relay Service works over the Internet so that relay calls are possible without a TTY. |